Sketch up fading out problems

Urgent!! I am working on the weekend on a deadline for monday and I can only fade into the drawing not out of using my scroll wheel.

I am on a MacBook Pro running Tiger!

Thanks

Hi Thegn,

This may be late in arriving but I wanted to be sure you had an answer. There aren't any known causes for the scroll wheel to start failing after its been working fine in SketchUp but you might simply be dealing with some OS X flakiness. My first recommendation is to unplug the mouse then plug it back in to see if that resets the issue. If that doesn't help, try rebooting your system. Lastly, depending on the mouse type, you might want to look into installing or uninstalling the mouse driver software to see if thats affecting the behavior.

Jody